Question

What is nickel most used for in the U.S.?

Answer 1

The most common is +2. The U.S. five cent coin, the "nickel", is composed of 75% copper and 25% nickel. It is the second most abundant element in the Earth's core after iron. Nickel plays a role in the cells of plants and some microorganisms.

Answer 2

Nickel exists in oxidation states of -1 to +4. The most common is +2. The U.S. five cent coin, the "nickel", is composed of 75% copper and 25% nickel. It is the second most abundant element in the Earth's core after iro